Rolex Caliber 4030

Brand:	Rolex
Family:	Rolex > Calibers > Họ 4030
Reference:	4030 Mã chính thức do nhà sản xuất đặt
SKU:	Rolex4030 Product codes are set by thuviendongho to help classify and identify them more easily
Name:	Rolex Caliber 4030
Produced:	1988-2000 Discontinued

Country of Manufacture	Swiss Made, Switzerland

FUNCTIONS

Base	Zenith Caliber El Primero 400
Movement type	Self Winding
Certification	COSC Chronometer Certified
Functions	Chronograph, Hacking stop
Chronograph	Column wheel, 60-second counter, 12-hour counter, 30-minute counter
Power reserve	50 h
Jewel	31
Display	6 hands, Central hour hand, Central minute hand, Small second hand at 9:00, Central second chronograph hand, 30-minute chronograph hand at 3:00, 12-hour chronograph hand at 6:00
Frequency	28,800 vph (4Hz)

DIMENSIONS

Diameter	31 mm
Lignes	13¾ "'
Thickness	6.55 mm

ADDITIONAL INFORMATION

Lift Angle	No Information
Rotor style	Ball-bearing
Rotor winding direction	Bi-directional
Anti-Shock System	KIF
Escapement	Swiss lever
Balance	Free-sprung, Glucydur
Balance Spring	Breguet
Number of parts	200

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Detailed description

This self-winding chronograph movement bases on the calibre El Primero by Zenith (Calibre Zenith 400) and has been modified by Rolex.

The fast-oscillating Zenith calibre has been clocked down from 36,000 A/h to 28,800 A/h and has been provided with a Breguet hairspring and with microstella screws.

It was used in the model Rolex Oyster Perpetual Cosmograph Daytona till 2000. Afterwards it was replaced by the Rolex-own development Rolex 4130.